* Add 1 Part 2318c01 Light Bluish Gray Duplo Siren with Trans-Dark Blue Lights (Alternate) (match ID 1)
* Change 1 Part Pearl Light Gray 2318c01 Duplo Siren with Trans-Dark Blue Lights {match ID 0 to 1}
Comments from Submitter:
My sealed set (the same one with the alternate yellow traffic light brick) came with a Light Bluish Gray siren.
Therefore using the same Match ID.